How to Change a Battery in a Honeywell Thermostat



The Honeywell thermostat requires two AA or AAA batteries, and many of these thermostats feature a removable battery compartment. While these batteries are not the most common of problems, they can lead to uncomfortable settings.

Battery in a Honeywell Thermostat

It is important to replace your AA or AAA batteries before they run out. To change a battery, first, remove the old batteries from the device, and then insert the new ones. Place the negative end of the battery first, then the positive end, and then close the battery compartment.

Dead Battery, Leak, Leakage, Charge

After removing the old batteries, open the cover plate on your Honeywell thermostat and turn the power on. Line up the positive and negative batteries in the positive and negative receptors on the thermostat. Depending on your model, you may need to replace the batteries at different intervals. In order to avoid damaging the battery compartment, use the right type of AAA battery If the battery compartment on your Honeywell thermostat is not completely open, you must insert new batteries into the top to prevent damage to the housing.

To replace the batteries in a Honeywell thermostat, remove the battery compartment. You can find the compartment by unscrewing screws located on the body of the device. If your Honeywell thermostat has a decorative cover plate, you may need to remove the decorative cover plate separately. To remove the battery cover, hook your finger underneath the outer plastic ring and remove it. If your model is not labeled CT-TL, TH-R, or RLV, you may need to unscrew a screw at the base to remove the battery.